NAD CI980 8-Channel / 4-Zone Power amplier Brand_IsoTek This control loop responds to

This control loop responds to audio-frequency load changes and keeps the supply voltage constant without the use of a large bank of capacitors

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manufacturers will even house cheaper C-core and EI-core transformers in an outboard power supply box with an umbilical cable rather than upgrade to an expensive toroid

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NAD CI980 8-Channel / 4-Zone Power amplier Brand_IsoTek This control loop responds toKey Features Eight channels of clean, low distortion power set up in four stereo zone configuration 50W x 8 @ 8 Ohms; 60W x 8 @ 4 Ohms; 120W @ 8 Ohms in Bridge Mode Universal voltage to accommodate marine or avionics installations Compact 2U rack height with rack ears Phoenix speaker connection blocks Detachable power cable for easy service and upgrades Indicator lamps for each zone that show protection status and amplifier clipping <0. 5W standby